Richard A. Jewell, whose transformation from heroic security guard to Olympic bombing suspect and back again came to symbolize the excesses of law enforcement and the news media, died Wednesday at his home in Woodbury, Ga. He was 44. The heavy-set Mr. Jewell, with a country drawl and a deferential manner, became an instant celebrity after a bomb exploded in Centennial Olympic Park in Atlanta in the early hours of July 27, 1996, Only minutes earlier, Mr. Jewell, who was working a temporary job as a guard, had spotted the abandoned green knapsack that contained the bomb, called it to...